package com.chen.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.chen.pojo.Sign;
import com.chen.pojo.User;
import org.apache.ibatis.annotations.Param;

/**
 * @author chen
 * @date 2022/4/22 17:39
 */
public interface SignService extends IService<Sign> {

    Sign selectById(@Param("id") int id);

    Sign selectIsSigned(String username);

}
